Sometimes it's for stupid reasons too. I was trained as a mechanical engineer before getting into software and I thought data structures wouldnt be interesting because data didn't seem interesting. Boy was I wrong.
It's sometimes interesting to see how many people repeat things like "computers only see 1s and 0s" and at some point after working through all kinds of topics between CPU pipelines, data compression etc. one can (re)discover this truth from the other side, realising how amazing it is that all this knowledge and structure can be encoded in just 1s and 0s.
And I'm sure other fields have this too, where to the outside it's "just atoms and molecules" and then the scientist chuckles and says "indeed".
